Fusion of High Spatial and Spectral Resolution Images Based on Spatial Domain and Multiresolution Analysis

Image fusion is one of the important techniques toenhance image information of remote sensing. In orderto adequately make use of all kinds of remote sensingimages information such as Panchromatic and threebandmulti-spectral images, a novel remote sensingimage fusion scheme based on wavelet transform isproposed. The fusion of multispectral (MS) andpanchromatic (PAN) images, with complementaryspectral and spatial characteristics, is becoming apromising technique to obtain images with high spatialand spectral resolution simultaneously. Severalcommercial earth observation satellites carry dualresolutionsensors, which provide high spatialresolution panchromatic image and low spatialresolution multispectral image. Image fusiontechniques are therefore useful for integrating a highspectral resolution image with a high spatial resolutionimage, to produce a fused image with high spectral andspatial resolutions. The visual and statistical analysesof experimental results show that the proposed fusionmethod is more effective than the other methodmentioned in this paper